Indicator for dispensing apparatus.



E. BAKER.

Patented-11111018, 191s."

INDICATOR FOR DISPENSING APPARATUS.

APPLICATION FILED DEC. 22. ms. 1,270,098.

3 $HEETSSHEET K.

ATTORSEY.

M/INI-"EN TOR.

Zero I1 WITNESSES W/ ZI'EM L. E. BAKER. I

INDICATOR FOR DISPENSSNG APPAnATUS.

APPLICAT ON FILED DEC. 22,1916

Patented June 18, 1918.

3 SHEETS SHEET 3.

W/ & INVENTOR.

A mRNEY;

'IWI

STATES ENT OFLE 120E.

LINNAEUS :e, BAKER, OF E0111 WAYNE, INDIANA, AssI'eNoR am WAYNE 01L TANK AND PUMP eemrem, A eonmnmmou ere INDIANA.

emme To aZZ wZwm it may emwezm: Be it Knee-m that I, LINNAEUS Eu BAKER, a

citizen 01 fee United States 01? America and Idem 0f Wayne in the eeui' useful lmyjrevemenfe in Inispensing Appem'aus, 0i Whiz s specification nhen relates to impmvements dlspensing appwetue and the to provide :1 device that mi of t id mi"- e; para-me Opel-amen. Alse the rates a ndice'inen $11 will by 1 aetienv. ameunt- 0f 11 t1 ezlsac'zbiem 1 n the llltntlty e1 e @0211?! Q1011 of ease naw We a I a upen eae sen 51 m '1 away Mn in rear Adm t" a") -13 ie of Indian 3 invented eime 18, 1938 in perspective ()5 155 xotehed member corresponding throughout the several news and referring LOW ta the same;

The present mventien 3 designed. for use in. conymctien with a re meeting dispens' mg pump {1' a nerelly provided =55 r mechanism {3) ms 01" a crank (45;) 1 1 being mounted provided with d :Er'o aeeorl the stander-01' L gee)? meshe the p resent in collar. The housing (7) has a partition (14) therein, and within the housing, between the partition and the adjacent face of the standard (-3) is loosely arranged a dragring (15). Within the ring is a flange (16) and upon each side of the flange are arranged lugs (17) and (18) respectively. Also, the ring has an external annular chamfer (19) adapted to receive a screw (20), the latter being for the purpose of holding the ring within the housing while admitting of the rotation of the former. The movement of the ring is effected by the turning movement of the pump-shaft (6) through the medium of the projecting end of the set-screw (13) which is adapted to engage the lug (17) that extends into the path of the set-screw. As the pump-shaft turns in one direction the set-screw engages the lug (l7) and as the pu1np-shaft continues its movement in the same direction the ring is progressed. When the direction of rotation of the pump-shaft is reversed the set-screw on the collar is moved from the lug (17), leaving the ring stationary until the setscrew reaches the opposite side of the lug (17) whereupon movement of the ring occurs correspondingly in the opposite direction to its previous movement. The intention is that the ring shall have oscillat ing movement to an extent substantially less than that of the pump-shaft. This is effected because of the play aitorded the setscrcw in moving from one side of the lug (17), w en the pump-shaft is driven in one direction, to the opposite side of the lug when driven in the opposite direction.

In the front portion of the housing (7) is rotatably mounted an internally notched member (21) having a stem (22) that eX- tends through the partition (14-) and has bearing therein and is arranged in alinement with the pump-shaft (6). The stem also extends loosely through the dial (9) at the center thereof and has fixed thereon an index (23) adapted to rotate therewith. The notchedunember is retained in position within the housing by the dial upon one side and the partition. upon the other.

Upon. the inner end of the stem (22) is loosely mounted a drag'plate (24) havin diametrically opposite shoulders (25) an (26) respectively. The drag-plate lies within the outer portion of the ring (15). and its shoulders are adapted to become engaged by the lug (18) of the ring lternately as the latter is oscill: ted. A stud (27) extends forwardly from the drag-plate and has loosely mounted thereon a pawl (28) adapted to engage in the notches (29) of the member (21). The stud on the drag-plate extends through a slot (30) made in the partition (i l) to admit of its movement The pawl (28) has a ledge (31) on its rear side that rests normally upon a pin (32) that proapplied to a apropos jects from the partition (14), the purpose of which is to prevent the pawl from premature engagement with the notches oi": the notched member in the event the movement of the drag-plate-is greater than is necessary to move the pawl. beyond the successive notch.

Upon the front of the partition (1%) is a chambered boss (33) having a spring (34) therein ,and also a ball (35) that is com pressed by the spring against the notched surface of the member (21), the purpose thereof being to detain the notched member frictionally as it is progressed from. stage to stage by engagement in the notches the eof successively.

It is the intention that the device shall be so proportioned in its, working parts that the movement of the pump-shaft (6), upon each complete cycle of the pump mechanism, will effect the progression of the notchedmember, having the index fixed thereon, to an extent equal to the space of one of its notches, so that the notched member is advanced from notch to notch, the index will become likewise progressed through corresponding stages and point accordingly to the indicatin characters (10) that appear upon the dia, which numerically are pr cisely the same as the notches in the notched member. In order that the performance of the index shall correspond accurately with the complete cycles of the pumping mecha nism, it is essential that the notched member shall be advanced but a single notch upon each cycle of the pump. It is therefore es scntial that the shoulders (25) and (2%} on the drag-plate (24) shall be so spaced apart that contact with the lug (18) on the ring, the latter is oscillated, will result in proper degree of movement imparted to the drag-plate that will effect a sutiicient movement of the pawl (28), attached thereto, to insure the progression of the notched memher to the extent of one notch and not more.

In the operation of this invention, when pumping mechanism of the character herein disclosed, the pump-shaft (6) revolves as the rack is reciprocated by the gear mechanism, the pump-shaft being rotated first in one direction and then oppositely in order to effect reciprocal move ment of the rack. The set-screw on the collar which is attached to the ILiump-ShafMduI; in the movement of the latter, comesinto contact with the lug (17) on the ring and effects movement thereof in the same direction. The lug (18) on the ring, during the progression of the latter, comes into eon tact with the shoulder (26) on the-dragplate with the result that the drag-platej ie progressed and the pawl (28) pivoted upon the stud (27) is moved from. one notch. in

the notched member to the succeeding notch into which it gravitates. Should the move-- ment of the drag-plate he so extensive as to l the pawl beyond the intended notch,

the pin (32) which extends beneath the ledge (31) on the pawl, detains the pawl from enement with the second succeeding notch,

ga When' the pump-shaft is reversed, as in effecting the return stroke of the rack, the set-screw on thescollar is regressed to contact with the opposite si e of the lug (17) a and the ring becomes progressed in a direction opposite to its" former movement, and the lug (18) on the ring, during the progression of the atter, comes into contact with the I shoulder (25) on the drag-plate with-the re- I I sult that the latter is moved to its former indicating character to the next one succeed-- position. The notched member therefore becomes progressed through the medium of the pawl as the drag-plate is returned, and the index is accordingly advanced from one ing. The detention ball (35) frictionally detains' the notched member in each position as it is advanced. The index may be placed initially to point to any of the indicating .characters by manually turning it in the same direction in which it is actuated by the pawl.

By this construction, owing to the playv of the set-screw on the collar, before contacting. with the lug (17), and owing also to the play of the lug (18), before contacting with the 'shoulder (26) of the dragplate, the pawl is not moved into the next succeeding notch approximately until one end of the stroke of the pump has been reached. Also, when the movement of the pum shaft is reversed, owing to the play of t e set-screw in reaching the opposite side of the lug (17) and the play. of the lug (18) in reaching the shoulder (25) of the drag-plate, the progression of the notched member by the movement of the pawl oocurs approximately at the completion of the return stroke of the pump. Thus the index becomes progressed from one stage to another only upon complete reciprocationv of the I moved into engagement with the next sucump. In effect, the pawl becomes ceeding notch in the notched member at the completion of the u ward stroke of the pump, and the note ed member becomes p'rogressed to the extent of the space of one of its notches at the completion of the downward stroke of the pump, and the index the upone of which is adapted to be engaged upon its opposite sides by the projection on the collar as the latter-is oscillated; an inter-' nally notched member arranged in axial alinement with the pump-shaft; a dragplate having shoulders thereon spaced apart adapted to" be engaged alternately by the other of said lugs on the ring; a pawl in pivotal connection with the drag-(plate and engaging the notched member; a etent de vice engaging the notched member; a dial on the front of the housing having an annular series of indicatin characters thereon; and an index in fixe notched member and adapted to register with said characters successively accordingly as the notched member is progressed.

2. In apparatus of the class described, a

housing; a drag-ring mounted therein; a driving member adapted to oscillate the ring; a drag-plate having1 two shoulders spaced apart and being a apted .to be os-. cillated y said ring, the latter having means in connection therewith for alternately' engagin said shoulders as it is osmember; a dial on the front of the housin and an index in fixed relation with t e vnotched member and adapted to traverse the dial. Y

3, In apparatus of the class described, a housing having a dial thereon; a notched member having an index thereon adapted to traverse the dial; a dra -plate having a pawl in connection therewith that engages the notched member and drives the same in one direction as the drag-plate is oscillated;

an oscillatin driving member; and a drag-.

ring adapte to be engaged b the driving member and moved thereby uring a portion only of each movement thereof, and having also engaging relation with the drag-plate, the latter being adapted to be moved thereby during a portion only of each movement of the. ring.

l. In apparatus of the class described, a

housing, an'oscillating drag-ring therein; an oscillating drive-member adapted to move the ring in opposite directions at the ends of its movements. respectively; a drag-plate adapted to be moved in opposite directions by the ring at the ends of the corresponding movements thereof; a notched member having an index fixed thereon; means in connectionwith the drag-plate for actuatin the notchedmember at the conclusion 0 one ofits movements; and a dial adapted to be traversed by the index.

5. In apparatus of, the class described, an indicatin device including a dial, index and notche member for progressing the latter; an oscillating dr'a -plate; a pawl pivoted on the latter an relation with the f cillated; anotc ed member; a pawl mount-- 'ed in connection with the drag-plate and having actuating relation with the-notched engaging the notchefi member; an oscillating drive 3 V berg and an oscillating drag ring ha 111g; driven relatien with the tlpivefllenlber and driving relation with drag-plate, there being play between the ring in its engagements with both the drive-member and mg-plate.

LINN -13? S E! NI messes: 

